Functional Causes Of Malocclusion

Mouth Breathing

It causes adenoid faces as well as long faces with open bites. The mechanism of mouth breathing in causing malocclusion is:

“Understanding the role of habits in malocclusion”

causes of malocclusion

“Thumb-sucking and its role in malocclusion”

Thumb Sucking

The mechanism of thumb sucking in causing malocclusion is:

“Mouth breathing as a cause of malocclusion”

Tongue Posture

When the tongue is normally positioned its tip lies behind mandibular incisors and the lateral border rests over the linguoocclusal surface of mandibular posterior teeth.
During its class 2 position, the tip of the tongue gets retruded during rest
During its class 2 position, the tip of the tongue lies forward.

Tongue Thrusting

Tongue thrusting leads to malocclusion because of a change in the posture of the tongue.

“Behavioral interventions for oral habits causing malocclusion”

Functional Shifts

At the time of eruption of permanent teeth, the functional shift causes malocclusion in anteroposterior and transverse directions.

mouth breathing and malocclusion

Retained Infantile Swallow

This leads to malocclusion due to retained infantile swallow.

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